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Related Party Transactions - Additional Information (Detail) - USD ($) | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 01, 2017 | Dec. 31, 2017 | Jan. 01, 2017 | Jan. 03, 2016
Related Party Transaction [Line Items] |  |  |  |
Net Recovery of short swing profits | $ 100,000 | $ 136,000 |  |
Related legal fees and taxes |  | 200,000 |  |
Musick Peeler & Garrett LLP [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Services received by Company from related party |  |  |  | $ 700,000
Co-founder [Member] |  |  |  |
Related Party Transaction [Line Items] |  |  |  |
Annual base salary under agreement to be paid to related party |  | 350,000 |  |
Salary base amount under agreement paid to related party |  | 350,000 | $ 350,000 | 350,000
Expense recognized to provide future obligations under agreement |  | 200,000 | 200,000 | $ 300,000
Liability of future obligations |  | $ 1,200,000 | $ 1,300,000 |

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